Email this article STUDY ON EFFECT OF MANUAL FERTILIZER AND ORGANIC FERTILIZER ON GROWTH AND DEVELOPMENT OF DAI MINH GRAPEFRUIT VARIETY AT 8-10 YEARS OLD IN YEN BINH DISTRICT, YEN BAI PROVINCE
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Published: 31/10/17Authors
1. Tran Trung Kien
, TNU - University of Agriculture and Forestry2. Nguyen Minh Tuan, TNU - University of Agriculture and Forestry
3. Ha Duy Truong, TNU - University of Agriculture and Forestry
4. Phan Thi Thu Hang, TNU - University of Agriculture and Forestry
5. Duong Trung Dung, TNU - University of Agriculture and Forestry
Abstract
The study was conducted at Dai Minh, Yen Binh district, Yen Bai province to evaluate the affect of manual and organic fertilize on growth and development of Dai Minh grapefruit vatiety at 8-10 years old. Two experiment were caried out from November 2016 to September 2017, both experiment was desing follow the methods in fruit crop include 4 treatments, 3 trees was one experiment unit. The shoot initial time, shood development, flower time and fruit drop was recorded. The results showed that application of 70 kg manual fetilizer/tree and 50 kg organic fertilizer/tree gave rapied shoot initial as compared to untreated control. Moreover, application of 70 kg manual fetilizer/tree and 30 kg organic fertilizer/tree clearly reduce flower time and fruit drop than the control treatment. Moreover, application of manual fertilizer and organic fertilizer also improving fruit development than that control treatment.
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